A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability.
https://github.com/stefanberger/libtpms/pull/223
https://github.com/stefanberger/libtpms/commit/7981d9a
https://github.com/stefanberger/libtpms/commit/2f30d62